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  1. #1
    Member
    Join Date
    Oct 2010
    Posts
    36
    Location
    Pilot Point TX
    Tractor
    Ford 1841S

    Default Oil filter help, please

    When I went to change oil and filter on my 850, I removed the old spin-on filter and went to replace it with a new PH8A filter. It would not screw on. It was like the opening in the filter was too small for the filter base. I checked the filter thread pitch and it matched the base. I grabbed another PH8A filter and tried it. It still wouldn't screw on. At this point, I am starting to doubt my sanity. I check the old filter - no markings of any kind.

    I have two questions. Did these tractors originally come with a cartridge filter? Was there another conversion kit that used a filter other than the PH8A? If so, what would be the correct filter for it?

    For now, I put the old filter back on. It screwed right on with no issues.

    Thanks in advance.

    Gayle

  2. #2
    Elite Member
    Join Date
    Mar 2009
    Posts
    3,224
    Location
    Lee, IL
    Tractor
    John Deere 1070

    Default Re: Oil filter help, please

    is the ph8a what you removed? Otherwise, what made you choose that filter? The farm store by me has a fram "industrial application" book that includes tractors, semi's, and other things. My 1070 is listed in it. Check it out online sometime, the fram application site online seems to be down right now. Otherwise go to Napa, they should have a cross-reference for you. Worst case scenario, get one from Deere.

  3. #3
    Member
    Join Date
    Oct 2010
    Posts
    36
    Location
    Pilot Point TX
    Tractor
    Ford 1841S

    Default Re: Oil filter help, please

    The one I removed was white with no visible markings. I have an 1841, also with the 172 engine and it takes the PH8A.

  4. #4
    Elite Member
    Join Date
    Mar 2009
    Posts
    3,224
    Location
    Lee, IL
    Tractor
    John Deere 1070

    Default Re: Oil filter help, please

    ok, so I found another site that had the application guide from fram. It appears the ph8a is for hyd. fluid and has an alternative p7061. The engine oil filter should be a ph3593a, the same as my 1070. Hopefully this helps.

  5. #5
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    48,591
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Oil filter help, please

    Quote Originally Posted by mikehaugen View Post
    ok, so I found another site that had the application guide from fram. It appears the ph8a is for hyd. fluid and has an alternative p7061. The engine oil filter should be a ph3593a, the same as my 1070. Hopefully this helps.

    No...the PH8A is the correct ENGINE oil fram filter.

    it crosses to a motorcraft FL1A, napa 1515, 1452, etc..

    To the OP.. YES.. an 850 would have originally had a cartridge filter a napa 1004 or ch6pl fram.. but would have had a different stem nut and also a canister housing.

    it was common to buy the spin on kit with new nut and backing plate and oring. Once the machines went to non sleeved.. they also went to spin on with no conversion kit.

    who knows what has been done to your machine in the near 60years since it was built.

    determine the thread type of the adapter nut, and gasket diameter and get an oil filter to fit. It's also possible the adapter nut has a bad first thread and the old filter was forced on and cut new threads, and is why it goes on and off easilly.

  6. #6
    Member
    Join Date
    Oct 2010
    Posts
    36
    Location
    Pilot Point TX
    Tractor
    Ford 1841S

    Default Re: Oil filter help, please

    Thanks, Soundguy. I thought sure that it was the right filter. This weekend I will pull the filter and pay closer attention to the threads on the adapter. It looks like the adapter kits are not real expensive so if the threads are messed up and I can't fix them, it won't be a real big deal.

    Thanks again!

    Gayle

  7. #7
    Platinum Member
    Join Date
    Aug 2012
    Posts
    983
    Location
    Hartford, SD
    Tractor
    Kubota L3400F

    Default Re: Oil filter help, please

    I think you can take a filter to an autoparts store and they can verify the center threads, oil ring, and canister size. They will then give you various manufacture options.

  8. #8
    Silver Member
    Join Date
    Sep 2012
    Posts
    218
    Location
    hawesville
    Tractor
    600 ford

    Default Re: Oil filter help, please

    Quote Originally Posted by glinke View Post
    The one I removed was white with no visible markings. I have an 1841, also with the 172 engine and it takes the PH8A.
    i have a 600 i run a ph8a filter

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